"My love, I need you to be safe."
"Mum?"
"The War is coming and I know that something bad is going to happen."
"But..."
"I'm going to send you away from Gallifrey," she told him, kissing his forehead, "To a planet called Earth. The Doctor has claimed the planet under his protection and you know how much the other's hate dealing with him."
"But he's..."
"He'll keep you safe my love," she told him, "Especially considering that you're his son."
The Time Lady gave her son one last hug before pulling down the heavily modified chameleon arch and placing it on the young Gallifreyan's head.
"You're taking my memories?" The child exclaimed.
His mother shook her head, "The only way for you to be safe is if you're considered just another human. This arch will transform you, but I've fixed it so that you can keep impressions of your memories. Human bodies cannot cope with Time Lord brains."
"But I..." He began to scream. His mother held him firmly in her arms as the chameleon arch changed her son's DNA. She soothed him the best she could, desperate for forgiveness. No mother ever wanted to put their child in so much pain. Finally it was over, and she only felt one heart beating. She gently removed the device from his head and slowly removed her son's Time Lord essence: it made a handsome fob watch. Laying him down on the ground, using her balled up jacket for a pillow, she made the young potential Time Lord to be comfortable. Once she was sure that he was situated, she turned her attention to the central station.
"Avery Ada," she said gently. A semi-corporeal presence suddenly appeared. "I need you to do me a favor."
Avery Ada looked down on her mistress, friend, and companion's son, "Anything," she replied, "You only need to ask."
"The last, greatest and most terrible Time War is on the horizon. It is quite obvious, to me at least, that there will be no victory. The Daleks came to do one thing, and one thing only; to exterminate the Time Lords and I do not wish that fate to befall my only child."
Avery Ada hummed, "I understand," she said, "I take it you need me to keep your child safe."
"He is human," she told the beautiful ship, "And until he is ready to fend for himself, I need you to watch over him."
"Is he to be my new companion?"
She rested her hand gently on the console, "There is no one I trust more," she said.
Avery Ada bowed, "It is my honor, Time Lord."
As they hurtled through time and space towards Earth, she sat on the ground, her son's head cradled in her lap. She gently stroked his head, memorizing as much of him as she could. When they finally arrived, she gently kissed his brow and whispered something in his ear before standing up and carrying him outside her ship. Avery Ada used this opportunity to transform herself into a more corporeal form, transforming from ship to a young teenaged humanoid shape. She gently accepted the young boy into her arms.
"Keep him safe," she whispered, a tear crawling down her cheek.
Avery Ada nodded, "I will protect him with my life."
She handed the fob watch to Avery Ada, "You'll know when he's ready," she said. She then pulled something out of her pocket and clasped it around his wrist. Kissing his brow once more before backing away from the boy and his ship, she stared at them for the longest time and after gently touching her pendant, she disappeared. That would be the last time Avery Ada ever saw her mistress, friend and companion, Preyala, the Artisan.